Control your display from your home automation system

How it works

One address, two parameters. Call it, and the text replaces your personal message and scrolls across the panel within a minute.

https://www.smartledmessenger.com/push.ashx?key=YOUR_KEY&message=The+laundry+is+done

Where to find your key

Sign in to your customer area, box “Your personal URL”, then “Show my URL”. You get the full address, key included.

Get my personal address

Three things to know before you start

They explain nearly every “it doesn't work” report we get.

Home Assistant

Declare a command once and for all, then call it from any automation.

1. Declare the command

In configuration.yaml, then restart Home Assistant:

# configuration.yaml
rest_command:
  display:
    # Paste your address here, keeping the key exactly as
    # shown in the customer area, including the %2B and %3D.
    url: >-
      https://www.smartledmessenger.com/push.ashx?key=YOUR_KEY&message={{ text | urlencode }}
    method: get

The urlencode filter is essential: without it, a message containing a space, an accent or an ampersand would break the address.

2. Call it

# From an automation, a script, or the developer tools
action: rest_command.display
data:
  text: "The laundry is done"

3. A few handy automations

The washing machine has finished — detected by power draw dropping:

automation:
  - alias: "Display - washing machine done"
    triggers:
      - trigger: numeric_state
        entity_id: sensor.washing_machine_power
        below: 5
        for: "00:05:00"
    actions:
      - action: rest_command.display
        data:
          text: "The laundry is done"

The day's forecast, every morning:

automation:
  - alias: "Display - morning weather"
    triggers:
      - trigger: time
        at: "07:15:00"
    actions:
      - action: rest_command.display
        data:
          text: >-
            Today {{ state_attr('weather.home','temperature') }} degrees,
            {{ states('sensor.air_quality') }}

Clear the message in the evening — the display resumes its other options:

automation:
  - alias: "Display - clear in the evening"
    triggers:
      - trigger: time
        at: "22:00:00"
    actions:
      - action: rest_command.display
        data:
          text: ""

Jeedom

Two ways to do it, depending on whether you prefer graphical scenarios or code.

In a scenario

Add an Action block, choose “HTTP request” and paste the address. Jeedom tags work inside the message:

https://www.smartledmessenger.com/push.ashx?key=YOUR_KEY&message=Living+room+temperature+#[Living room][Thermometer][Temperature]#+degrees

In a Code block

$text = "Alarm triggered in the garage";
$url = "https://www.smartledmessenger.com/push.ashx"
     . "?key=YOUR_KEY"
     . "&message=" . urlencode($text);
file_get_contents($url);

urlencode() takes care of spaces and accents: it's the safest method.

Node-RED

A function node to build the address, an http request node to call it.

“function” node

// msg.payload holds the text to display
const key = "YOUR_KEY";
msg.url = "https://www.smartledmessenger.com/push.ashx"
        + "?key=" + key
        + "&message=" + encodeURIComponent(msg.payload);
return msg;

“http request” node

• Method: GET
• URL: leave blank — it comes from msg.url
• Return: a UTF-8 string

encodeURIComponent handles spaces and accents. Don't apply it to the key, which is already encoded.

Script, terminal, scheduled task

The most direct way, and the best way to check that your key works before putting it into an automation.

Linux, macOS, Raspberry Pi

# --data-urlencode encodes spaces and accents for you
curl --get \
     --data-urlencode "key=YOUR_PLAIN_KEY" \
     --data-urlencode "message=Hello from the Raspberry" \
     https://www.smartledmessenger.com/push.ashx

Windows, PowerShell

$text = "Backup complete"
$url = "https://www.smartledmessenger.com/push.ashx?key=YOUR_KEY&message=" `
     + [uri]::EscapeDataString($text)
Invoke-RestMethod $url

Every morning, via cron

# Bin reminder on Tuesday and Friday at 7am
0 7 * * 2,5 curl -s "https://www.smartledmessenger.com/push.ashx?key=YOUR_KEY&message=Take+out+the+bins"

From Claude, in plain language

Your display also speaks MCP (Model Context Protocol), the protocol used by AI assistants. Once connected, just say “show the London weather on my panel” or “send HAPPY BIRTHDAY GRANDMA”: Claude sets up your display on its own.

Connecting your display to Claude

On claude.ai (or in the Claude app): Settings → Connectors → Add custom connector, then fill in:

YOUR_KEY is the same as for the push link above: the value that follows key= in your personal address, copied exactly as is (see “Where to find your key”).

What Claude can do

If something goes wrong

https://www.smartledmessenger.com/push.ashx?key=YOUR_KEY&message=

A use case that doesn't fit these examples? Write to us — these pages are shaped by your feedback.